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<h1 id="index">索引 &ndash; 环</h1>

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  <td style="width: 33%; vertical-align: top;"><ul>
      <li>
    环境变量

      <ul>
        <li><a href="whatsnew/2.6.html#index-5">APPDATA</a>
</li>
        <li><a href="library/ossaudiodev.html#index-0">AUDIODEV</a>
</li>
        <li><a href="library/webbrowser.html#index-8">BROWSER</a>, <a href="library/webbrowser.html#index-9">[1]</a>
</li>
        <li><a href="whatsnew/2.3.html#index-24">CC</a>
</li>
        <li><a href="install/index.html#index-10">CFLAGS</a>, <a href="install/index.html#index-9">[1]</a>, <a href="whatsnew/2.3.html#index-25">[2]</a>
</li>
        <li><a href="library/curses.html#index-4">COLS</a>, <a href="whatsnew/3.5.html#index-32">[1]</a>
</li>
        <li><a href="library/curses.html#index-6">COLUMNS</a>, <a href="library/curses.html#index-8">[1]</a>
</li>
        <li><a href="library/os.html#index-32">COMSPEC</a>, <a href="library/subprocess.html#index-8">[1]</a>
</li>
        <li><a href="whatsnew/2.3.html#index-26">CPP</a>
</li>
        <li><a href="whatsnew/2.3.html#index-28">CPPFLAGS</a>
</li>
        <li><a href="distutils/setupscript.html#index-0">DISTUTILS_DEBUG</a>
</li>
        <li><a href="distutils/apiref.html#index-1">HOME</a>, <a href="install/index.html#index-4">[1]</a>, <a href="install/index.html#index-5">[2]</a>, <a href="library/os.path.html#index-3">[3]</a>, <a href="library/os.path.html#index-4">[4]</a>
</li>
        <li><a href="install/index.html#index-7">HOMEDRIVE</a>, <a href="library/os.path.html#index-7">[1]</a>
</li>
        <li><a href="install/index.html#index-8">HOMEPATH</a>, <a href="library/os.path.html#index-6">[1]</a>
</li>
        <li><a href="library/idle.html#index-5">IDLESTARTUP</a>, <a href="whatsnew/changelog.html#index-18">[1]</a>, <a href="whatsnew/changelog.html#index-3">[2]</a>
</li>
        <li><a href="library/webbrowser.html#index-10">KDEDIR</a>
</li>
        <li><a href="library/gettext.html#index-3">LANG</a>, <a href="library/gettext.html#index-8">[1]</a>, <a href="library/locale.html#index-1">[2]</a>, <a href="library/locale.html#index-2">[3]</a>, <a href="library/locale.html#index-3">[4]</a>
</li>
        <li><a href="library/gettext.html#index-0">LANGUAGE</a>, <a href="library/gettext.html#index-5">[1]</a>
</li>
        <li><a href="library/gettext.html#index-1">LC_ALL</a>, <a href="library/gettext.html#index-6">[1]</a>
</li>
        <li><a href="library/gettext.html#index-2">LC_MESSAGES</a>, <a href="library/gettext.html#index-7">[1]</a>
</li>
        <li><a href="whatsnew/2.7.html#index-12">LDCXXSHARED</a>
</li>
        <li><a href="whatsnew/2.3.html#index-27">LDFLAGS</a>
</li>
        <li><a href="library/curses.html#index-0">LINES</a>, <a href="library/curses.html#index-3">[1]</a>, <a href="library/curses.html#index-5">[2]</a>, <a href="library/curses.html#index-7">[3]</a>, <a href="whatsnew/3.5.html#index-31">[4]</a>
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        <li><a href="library/getpass.html#index-10">LNAME</a>
</li>
        <li><a href="library/getpass.html#index-8">LOGNAME</a>, <a href="library/os.html#index-49">[1]</a>
</li>
        <li><a href="library/ossaudiodev.html#index-1">MIXERDEV</a>
</li>
        <li><a href="library/pydoc.html#index-1">PAGER</a>
</li>
        <li><a href="c-api/intro.html#index-22">PATH</a>, <a href="c-api/intro.html#index-23">[1]</a>, <a href="distutils/packageindex.html#index-1">[2]</a>, <a href="faq/library.html#index-4">[3]</a>, <a href="faq/library.html#index-5">[4]</a>, <a href="library/cgi.html#index-2">[5]</a>, <a href="library/cgi.html#index-5">[6]</a>, <a href="library/os.html#index-24">[7]</a>, <a href="library/os.html#index-25">[8]</a>, <a href="library/os.html#index-26">[9]</a>, <a href="library/os.html#index-29">[10]</a>, <a href="library/os.html#index-30">[11]</a>, <a href="library/os.html#index-31">[12]</a>, <a href="library/os.html#index-41">[13]</a>, <a href="library/webbrowser.html#index-11">[14]</a>, <a href="tutorial/appendix.html#index-4">[15]</a>, <a href="tutorial/modules.html#index-15">[16]</a>, <a href="using/cmdline.html#index-93">[17]</a>, <a href="using/unix.html#index-2">[18]</a>, <a href="using/windows.html#index-49">[19]</a>, <a href="using/windows.html#index-50">[20]</a>, <a href="using/windows.html#index-51">[21]</a>, <a href="using/windows.html#index-53">[22]</a>, <a href="using/windows.html#index-54">[23]</a>, <a href="using/windows.html#index-56">[24]</a>, <a href="using/windows.html#index-57">[25]</a>, <a href="using/windows.html#index-58">[26]</a>, <a href="using/windows.html#index-59">[27]</a>, <a href="using/windows.html#index-61">[28]</a>, <a href="using/windows.html#index-62">[29]</a>, <a href="using/windows.html#index-63">[30]</a>, <a href="using/windows.html#index-64">[31]</a>, <a href="whatsnew/3.4.html#index-55">[32]</a>, <a href="whatsnew/3.4.html#index-58">[33]</a>, <a href="whatsnew/3.4.html#index-59">[34]</a>
</li>
        <li><a href="using/windows.html#index-52">PATHEXT</a>, <a href="whatsnew/3.4.html#index-51">[1]</a>
</li>
        <li><a href="distutils/apiref.html#index-2">PLAT</a>
</li>
        <li><a href="library/getopt.html#index-0">POSIXLY_CORRECT</a>
</li>
        <li><a href="c-api/init.html#index-50">PYTHON*</a>, <a href="using/cmdline.html#index-72">[1]</a>, <a href="using/cmdline.html#index-77">[2]</a>, <a href="whatsnew/3.4.html#index-50">[3]</a>
</li>
        <li><a href="library/asyncio-dev.html#index-2">PYTHONASYNCIODEBUG</a>, <a href="library/asyncio-eventloop.html#index-11">[1]</a>, <a href="using/cmdline.html#envvar-PYTHONASYNCIODEBUG">[2]</a>
</li>
        <li><a href="library/sys.html#index-1">PYTHONBREAKPOINT</a>, <a href="library/sys.html#index-2">[1]</a>, <a href="library/sys.html#index-3">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONBREAKPOINT">[3]</a>, <a href="whatsnew/3.7.html#index-90">[4]</a>
</li>
        <li><a href="using/cmdline.html#envvar-PYTHONCASEOK">PYTHONCASEOK</a>, <a href="whatsnew/2.1.html#index-8">[1]</a>
</li>
        <li><a href="using/cmdline.html#envvar-PYTHONCOERCECLOCALE">PYTHONCOERCECLOCALE</a>, <a href="using/cmdline.html#index-39">[1]</a>, <a href="whatsnew/3.7.html#index-82">[2]</a>
</li>
        <li><a href="c-api/init.html#index-0">PYTHONDEBUG</a>, <a href="using/cmdline.html#envvar-PYTHONDEBUG">[1]</a>, <a href="using/cmdline.html#index-71">[2]</a>
</li>
        <li><a href="library/development.html#index-2">PYTHONDEVMODE</a>, <a href="using/cmdline.html#envvar-PYTHONDEVMODE">[1]</a>, <a href="whatsnew/3.7.html#index-104">[2]</a>
</li>
        <li><a href="library/pydoc.html#index-2">PYTHONDOCS</a>
</li>
        <li><a href="c-api/init.html#index-1">PYTHONDONTWRITEBYTECODE</a>, <a href="faq/programming.html#index-4">[1]</a>, <a href="library/sys.html#index-4">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONDONTWRITEBYTECODE">[3]</a>, <a href="using/cmdline.html#index-70">[4]</a>, <a href="whatsnew/2.6.html#index-20">[5]</a>, <a href="whatsnew/2.6.html#index-24">[6]</a>
</li>
        <li><a href="c-api/typeobj.html#index-0">PYTHONDUMPREFS</a>, <a href="using/cmdline.html#envvar-PYTHONDUMPREFS">[1]</a>
</li>
        <li><a href="using/cmdline.html#envvar-PYTHONEXECUTABLE">PYTHONEXECUTABLE</a>
</li>
        <li><a href="library/faulthandler.html#index-0">PYTHONFAULTHANDLER</a>, <a href="using/cmdline.html#envvar-PYTHONFAULTHANDLER">[1]</a>, <a href="whatsnew/3.3.html#index-23">[2]</a>
</li>
        <li><a href="c-api/init.html#index-2">PYTHONHASHSEED</a>, <a href="c-api/init.html#index-3">[1]</a>, <a href="reference/datamodel.html#index-115">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONHASHSEED">[3]</a>, <a href="using/cmdline.html#index-29">[4]</a>, <a href="using/cmdline.html#index-83">[5]</a>, <a href="using/cmdline.html#index-84">[6]</a>, <a href="whatsnew/3.3.html#index-22">[7]</a>, <a href="whatsnew/3.3.html#index-33">[8]</a>, <a href="whatsnew/changelog.html#index-9">[9]</a>
</li>
        <li><a href="c-api/init.html#index-31">PYTHONHOME</a>, <a href="c-api/init.html#index-32">[1]</a>, <a href="c-api/init.html#index-52">[2]</a>, <a href="c-api/intro.html#index-24">[3]</a>, <a href="c-api/intro.html#index-27">[4]</a>, <a href="install/index.html#index-0">[5]</a>, <a href="install/index.html#index-1">[6]</a>, <a href="library/test.html#index-0">[7]</a>, <a href="using/cmdline.html#envvar-PYTHONHOME">[8]</a>, <a href="using/cmdline.html#index-26">[9]</a>, <a href="using/cmdline.html#index-74">[10]</a>, <a href="using/cmdline.html#index-91">[11]</a>, <a href="using/cmdline.html#index-92">[12]</a>, <a href="using/windows.html#index-66">[13]</a>, <a href="using/windows.html#index-68">[14]</a>, <a href="using/windows.html#index-70">[15]</a>, <a href="whatsnew/3.6.html#index-2">[16]</a>
</li>
        <li><a href="c-api/init.html#index-7">PYTHONINSPECT</a>, <a href="using/cmdline.html#envvar-PYTHONINSPECT">[1]</a>, <a href="using/cmdline.html#index-76">[2]</a>, <a href="whatsnew/2.3.html#index-29">[3]</a>
</li>
        <li><a href="c-api/init.html#index-18">PYTHONIOENCODING</a>, <a href="c-api/init.html#index-19">[1]</a>, <a href="library/sys.html#index-33">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONIOENCODING">[3]</a>, <a href="using/cmdline.html#index-35">[4]</a>, <a href="using/cmdline.html#index-38">[5]</a>, <a href="whatsnew/2.6.html#index-21">[6]</a>, <a href="whatsnew/3.4.html#index-54">[7]</a>
</li>
        <li><a href="c-api/init.html#index-8">PYTHONLEGACYWINDOWSFSENCODING</a>, <a href="library/sys.html#index-31">[1]</a>, <a href="using/cmdline.html#envvar-PYTHONLEGACYWINDOWSFSENCODING">[2]</a>, <a href="whatsnew/3.6.html#index-19">[3]</a>
</li>
        <li><a href="c-api/init.html#index-10">PYTHONLEGACYWINDOWSSTDIO</a>, <a href="library/sys.html#index-35">[1]</a>, <a href="using/cmdline.html#envvar-PYTHONLEGACYWINDOWSSTDIO">[2]</a>, <a href="using/cmdline.html#index-30">[3]</a>, <a href="whatsnew/3.6.html#index-21">[4]</a>
</li>
        <li><a href="c-api/memory.html#index-1">PYTHONMALLOC</a>, <a href="c-api/memory.html#index-3">[1]</a>, <a href="c-api/memory.html#index-4">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONMALLOC">[3]</a>, <a href="using/cmdline.html#index-33">[4]</a>, <a href="whatsnew/3.6.html#index-27">[5]</a>, <a href="whatsnew/3.6.html#index-38">[6]</a>, <a href="whatsnew/changelog.html#index-22">[7]</a>
</li>
        <li><a href="c-api/memory.html#index-2">PYTHONMALLOCSTATS</a>, <a href="using/cmdline.html#envvar-PYTHONMALLOCSTATS">[1]</a>, <a href="whatsnew/changelog.html#index-23">[2]</a>
</li>
        <li><a href="c-api/init.html#index-12">PYTHONNOUSERSITE</a>, <a href="library/site.html#index-10">[1]</a>, <a href="library/site.html#index-7">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONNOUSERSITE">[3]</a>, <a href="whatsnew/2.6.html#index-6">[4]</a>
</li>
        <li><a href="c-api/init.html#index-13">PYTHONOPTIMIZE</a>, <a href="using/cmdline.html#envvar-PYTHONOPTIMIZE">[1]</a>, <a href="using/cmdline.html#index-79">[2]</a>
</li>
        <li><a href="c-api/init.html#index-51">PYTHONPATH</a>, <a href="c-api/intro.html#index-25">[1]</a>, <a href="c-api/intro.html#index-28">[2]</a>, <a href="extending/building.html#index-0">[3]</a>, <a href="install/index.html#index-2">[4]</a>, <a href="install/index.html#index-3">[5]</a>, <a href="library/cgi.html#index-3">[6]</a>, <a href="library/sys.html#index-19">[7]</a>, <a href="library/sys.html#index-20">[8]</a>, <a href="library/test.html#index-1">[9]</a>, <a href="tutorial/modules.html#index-14">[10]</a>, <a href="tutorial/modules.html#index-17">[11]</a>, <a href="tutorial/modules.html#index-18">[12]</a>, <a href="using/cmdline.html#envvar-PYTHONPATH">[13]</a>, <a href="using/cmdline.html#index-25">[14]</a>, <a href="using/cmdline.html#index-27">[15]</a>, <a href="using/cmdline.html#index-28">[16]</a>, <a href="using/cmdline.html#index-73">[17]</a>, <a href="using/mac.html#index-2">[18]</a>, <a href="using/windows.html#index-55">[19]</a>, <a href="using/windows.html#index-65">[20]</a>, <a href="using/windows.html#index-67">[21]</a>, <a href="using/windows.html#index-69">[22]</a>, <a href="whatsnew/3.4.html#index-56">[23]</a>, <a href="whatsnew/3.4.html#index-57">[24]</a>
</li>
        <li><a href="using/cmdline.html#envvar-PYTHONPROFILEIMPORTTIME">PYTHONPROFILEIMPORTTIME</a>, <a href="using/cmdline.html#index-89">[1]</a>, <a href="whatsnew/3.7.html#index-105">[2]</a>, <a href="whatsnew/changelog.html#index-16">[3]</a>
</li>
        <li><a href="whatsnew/2.7.html#index-15">PYTHONSHOWALLOCCOUNT</a>
</li>
        <li><a href="whatsnew/2.7.html#index-14">PYTHONSHOWREFCOUNT</a>
</li>
        <li><a href="library/idle.html#index-6">PYTHONSTARTUP</a>, <a href="library/readline.html#index-0">[1]</a>, <a href="library/site.html#index-6">[2]</a>, <a href="library/sys.html#index-15">[3]</a>, <a href="tutorial/appendix.html#index-5">[4]</a>, <a href="using/cmdline.html#envvar-PYTHONSTARTUP">[5]</a>, <a href="using/cmdline.html#index-75">[6]</a>, <a href="whatsnew/3.4.html#index-40">[7]</a>, <a href="whatsnew/3.4.html#index-41">[8]</a>, <a href="whatsnew/changelog.html#index-19">[9]</a>, <a href="whatsnew/changelog.html#index-4">[10]</a>
</li>
        <li><a href="using/cmdline.html#envvar-PYTHONTHREADDEBUG">PYTHONTHREADDEBUG</a>
</li>
        <li><a href="library/tracemalloc.html#index-0">PYTHONTRACEMALLOC</a>, <a href="library/tracemalloc.html#index-1">[1]</a>, <a href="library/tracemalloc.html#index-2">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONTRACEMALLOC">[3]</a>
</li>
        <li><a href="c-api/init.html#index-14">PYTHONUNBUFFERED</a>, <a href="using/cmdline.html#envvar-PYTHONUNBUFFERED">[1]</a>, <a href="using/cmdline.html#index-86">[2]</a>
</li>
        <li><a href="library/site.html#index-8">PYTHONUSERBASE</a>, <a href="library/site.html#index-9">[1]</a>, <a href="using/cmdline.html#envvar-PYTHONUSERBASE">[2]</a>, <a href="whatsnew/2.6.html#index-4">[3]</a>
</li>
        <li><a href="library/test.html#index-2">PYTHONUSERSITE</a>
</li>
        <li><a href="library/sys.html#index-34">PYTHONUTF8</a>, <a href="using/cmdline.html#envvar-PYTHONUTF8">[1]</a>, <a href="using/cmdline.html#index-36">[2]</a>, <a href="using/cmdline.html#index-90">[3]</a>, <a href="whatsnew/3.7.html#index-86">[4]</a>
</li>
        <li><a href="c-api/init.html#index-15">PYTHONVERBOSE</a>, <a href="using/cmdline.html#envvar-PYTHONVERBOSE">[1]</a>, <a href="using/cmdline.html#index-87">[2]</a>
</li>
        <li><a href="library/warnings.html#index-1">PYTHONWARNINGS</a>, <a href="library/warnings.html#index-2">[1]</a>, <a href="library/warnings.html#index-3">[2]</a>, <a href="using/cmdline.html#envvar-PYTHONWARNINGS">[3]</a>, <a href="using/cmdline.html#index-88">[4]</a>, <a href="whatsnew/2.7.html#index-1">[5]</a>, <a href="whatsnew/2.7.html#index-8">[6]</a>, <a href="whatsnew/3.2.html#index-10">[7]</a>, <a href="whatsnew/3.7.html#index-114">[8]</a>
</li>
        <li><a href="library/xml.dom.html#index-0">PYTHON_DOM</a>
</li>
        <li><a href="library/compileall.html#index-1">SOURCE_DATE_EPOCH</a>, <a href="library/py_compile.html#index-3">[1]</a>, <a href="library/py_compile.html#index-6">[2]</a>, <a href="library/py_compile.html#index-7">[3]</a>, <a href="whatsnew/3.7.html#index-109">[4]</a>, <a href="whatsnew/changelog.html#index-0">[5]</a>, <a href="whatsnew/changelog.html#index-8">[6]</a>
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        <li><a href="library/time.html#index-14">TZ</a>, <a href="library/time.html#index-15">[1]</a>, <a href="library/time.html#index-16">[2]</a>, <a href="library/time.html#index-17">[3]</a>, <a href="library/time.html#index-18">[4]</a>, <a href="library/time.html#index-19">[5]</a>
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</li>
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</li>
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</li>
        <li><a href="c-api/intro.html#index-38">exec_prefix</a>, <a href="c-api/intro.html#index-41">[1]</a>, <a href="using/unix.html#index-1">[2]</a>
</li>
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</li>
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</li>
        <li><a href="c-api/intro.html#index-37">prefix</a>, <a href="c-api/intro.html#index-39">[1]</a>, <a href="c-api/intro.html#index-40">[2]</a>, <a href="using/unix.html#index-0">[3]</a>
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